EP1319943A3 - Impedance sensor for analytes in liquid solution - Google Patents

Impedance sensor for analytes in liquid solution Download PDF

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Publication number
EP1319943A3
EP1319943A3 EP02027006A EP02027006A EP1319943A3 EP 1319943 A3 EP1319943 A3 EP 1319943A3 EP 02027006 A EP02027006 A EP 02027006A EP 02027006 A EP02027006 A EP 02027006A EP 1319943 A3 EP1319943 A3 EP 1319943A3
Authority
EP
European Patent Office
Prior art keywords
insulating layer
conductors
die
leiter
isolierschicht
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02027006A
Other languages
German (de)
French (fr)
Other versions
EP1319943A2 (en
Inventor
Markus Dr. Löhndorf
Eckhard Dr. Quandt
Michael Dr. Tewes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stiftung Caesar Center of Advanced European Studies and Research
Original Assignee
Stiftung Caesar Center of Advanced European Studies and Research
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stiftung Caesar Center of Advanced European Studies and Research filed Critical Stiftung Caesar Center of Advanced European Studies and Research
Publication of EP1319943A2 publication Critical patent/EP1319943A2/en
Publication of EP1319943A3 publication Critical patent/EP1319943A3/en
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/226—Construction of measuring vessels; Electrodes therefor

Abstract

Verfahren zur Herstellung eines impedometrischen Sensors mit zwei beabstandeten insbesondere flächigen Leitern 2, 4, wobei in einen Meßraum 9 zwischen die Leiter 2, 4 ein zu untersuchender insbesondere in flüssiger Lösung befindlicher Analyt einbringbar ist, der die Impedanz des Sensors verändert, aufweisend folgende Verfahrenschritte:

  • der erste Leiter 2 wird mit einer Isolierschicht 3 bedeckt,
  • die Isolierschicht 3 wird mit dem zweiten Leiter 4 bedeckt und
  • die Isolierschicht 3 wird durch Zerstörung teilweise abgetragen, wobei ein oder mehrere Meßräume 9 zwischen den Leitern 2, 4 entstehen und wobei die verbleibenden Bereiche der Isolieschicht 3 einen Distanzhalter 8 für die Leiter 2, 4 bilden.
Figure imgaf001
Method for producing an impedometric sensor having two spaced, in particular planar conductors 2, 4, wherein in a measuring space 9 between the conductors 2, 4 an analyte to be examined, in particular in liquid solution, can be introduced, which changes the impedance of the sensor, comprising the following method steps:
  • the first conductor 2 is covered with an insulating layer 3,
  • the insulating layer 3 is covered with the second conductor 4 and
  • the insulating layer 3 is partially removed by destruction, wherein one or more measuring chambers 9 between the conductors 2, 4 arise and wherein the remaining regions of the insulating layer 3 form a spacer 8 for the conductors 2, 4.
Figure imgaf001
EP02027006A 2001-12-14 2002-12-03 Impedance sensor for analytes in liquid solution Withdrawn EP1319943A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001161447 DE10161447A1 (en) 2001-12-14 2001-12-14 impedance sensor
DE10161447 2001-12-14

Publications (2)

Publication Number Publication Date
EP1319943A2 EP1319943A2 (en) 2003-06-18
EP1319943A3 true EP1319943A3 (en) 2006-06-07

Family

ID=7709187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02027006A Withdrawn EP1319943A3 (en) 2001-12-14 2002-12-03 Impedance sensor for analytes in liquid solution

Country Status (2)

Country Link
EP (1) EP1319943A3 (en)
DE (1) DE10161447A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006528767A (en) * 2003-07-25 2006-12-21 パラゴン アクチエンゲゼルシャフト Microstructured chemical sensors
DE102013008243A1 (en) 2013-05-15 2014-11-20 Kimal Plc Probe for measuring biomolecules by means of electrochemical impedance spectroscopy
DE102015007875A1 (en) 2015-06-23 2016-12-29 Kimal Plc Measuring arrangement and method for in-vivo determination of the lactate concentration in blood by means of electrochemical impedance spectroscopy

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359831A1 (en) * 1988-03-31 1990-03-28 Matsushita Electric Industrial Co., Ltd. Biosensor and process for its production
WO1997021094A1 (en) * 1995-12-01 1997-06-12 Innogenetics N.V. Impedimetric detection system and method of production thereof
US5670031A (en) * 1993-06-03 1997-09-23 Fraunhofer-Gesellschaft Zur Angewandten Forschung E.V. Electrochemical sensor
WO2001029549A2 (en) * 1999-10-19 2001-04-26 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Method for producing electric conductive structures in the nanometric range and their use as an impedimetric sensor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19610115C2 (en) * 1996-03-14 2000-11-23 Fraunhofer Ges Forschung Detection of molecules and molecular complexes
US5945832A (en) * 1998-02-17 1999-08-31 Motorola, Inc. Structure and method of measuring electrical characteristics of a molecule
DE10015818A1 (en) * 2000-03-30 2001-10-18 Infineon Technologies Ag Biosensor and method for determining macromolecular biopolymers using a biosensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359831A1 (en) * 1988-03-31 1990-03-28 Matsushita Electric Industrial Co., Ltd. Biosensor and process for its production
US5670031A (en) * 1993-06-03 1997-09-23 Fraunhofer-Gesellschaft Zur Angewandten Forschung E.V. Electrochemical sensor
WO1997021094A1 (en) * 1995-12-01 1997-06-12 Innogenetics N.V. Impedimetric detection system and method of production thereof
WO2001029549A2 (en) * 1999-10-19 2001-04-26 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Method for producing electric conductive structures in the nanometric range and their use as an impedimetric sensor

Also Published As

Publication number Publication date
EP1319943A2 (en) 2003-06-18
DE10161447A1 (en) 2003-06-26

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